Understanding Range in Data Sets

In this video tutorial, Mr. J explains how to find the range of a data set. The range is determined by subtracting the lowest value from the highest value in the set. The video includes two examples: the first with a highest value of 15 and a lowest value of 8, resulting in a range of 7; the second with a highest value of 78 and a lowest value of 22, resulting in a range of 56. The tutorial emphasizes the importance of ordering data from least to greatest before calculating the range.

What is the primary purpose of finding the range in a data set?

• To determine the average value

• To find the middle value

• To understand the spread of the data

• To calculate the sum of all values

What is the first step in finding the range of a data set?

• Add all the numbers together

• Order the data from least to greatest

• Divide the highest value by the lowest value

• Multiply the highest and lowest values

In the first example, what is the range of the data set?

• 12

• 10

• 7

• 5

In the second example, what is the highest value in the data set?

• 22

• 100

• 78

• 56

What is the range of the data set in the second example?

• 56

• 60

• 50

• 45